Lennox Hearth 2-EN53-VDLPM, MN04-VDLPM, MN03-VDLPM Field Wiring, A. Millivolt Wiring See Figure

Note: Secure Flex vent must be attached to Secure Flex terminations only. DO NOT substitute Secure Vent terminations or the Secure Vent adapter for Secure Flex compo- nents. The collars of Secure Flex termina- tions and adapters have a different circum- ference than that used with the Secure Vent pipe. Additionally, Secure Flex components have an extended length center tube for use in attaching the flexible vent.

Step 4. FIELD WIRING

Caution: Label all wires prior to disconnec- tion when servicing controls. Wiring errors can cause improper and dangerous opera- tion. Verify proper operation after servicing.

Refer to Section A for millivolt appliances and Section B for electronic appliances. The gas valve is set in place and pre-wired at the factory on both models.

A. Millivolt Wiring (See Figure 36 ) –

1. Appliance-mounted ON/OFF burner control switch (rocker switch) is factory installed be- hind the bottom panel. Optional wall-mounted switch, thermostat, or one of the optional remote control kits may also be used.

2. If wall-mounted ON/OFF control or thermo- stat is selected mount it in a convenient loca-

4.If an optional control switch is installed, turn the appliance-mounted ON/OFF burner con- trol switch to the OFF position.

B. Electronic Wiring (See Figure 37 ) –

Note: The electronic appliance must be con- nected to the main power supply.

1. Route a 3-wire 120Vac 60Hz 1ph power supply to the appliance junction box.

2. Remove the electrical inlet cover plate from the side of the unit by removing the plate's securing screws. See Figure 11 on page 9.

3. Remove the cover plate's knockout and then feed the power supply wire through the knock- out opening and into the unit junction box.

4. Connect the black power supply wire to the lower outlet's red pigtail lead and the white power supply wire to the common terminal of the outlet as shown in Figure 37.

5. Connect the ground supply wire to the pigtail lead attached to outlet's green ground screw.

6. Appliance-mounted ON/OFF burner control switch (rocker switch) is factory installed be- hind the bottom panel.

Optional wall-mounted switch, thermostat, or one of the optional remote control kits may also be used. The appliance mounted ON/OFF switch needs to be relocated onto the optional style view door, if used.

7. If wall-mounted ON/OFF control or thermo- stat is to be used, mount it in a convenient location on a wall near the fireplace.

8. If an optional control is to be used, wire it in the low voltage circuit as shown in Figure 37.

Note: The supplied 15 feet of 2 conductor wire has one end of each conductor connected to the gas valve circuit and the other end of each conductor placed loose inside the bottom com- partment.

9. If an optional control switch is installed, turn the appliance-mounted ON/OFF burner control switch to the OFF position.

10. After the wiring is complete, replace the cover plate.

Note: No batteries to be installed in the battery holder until a power outage, or if the appliance is to be operated solely with two

(2) "D" batteries.

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tion on a wall near the fireplace.

3. Wire the control switch within the millivolt control circuit using the 15 feet of 2 conductor wire supplied with the unit.

Note: The supplied 15 feet of 2 conductor wire has one end of each conductor con- nected to the gas valve circuit and the other end of each conductor placed loose inside the bottom compartment.

Caution: Do Not connect the optional wall switch to a 120V power supply.

WIRING DIAGRAM MILLIVOLT GAS VALVES
		THERMOPILE
APPLIANCE- MOUNTED
ON/OFF SWITCH
		TP-TH
		TP
		TH
BK/W(1)	BK/W(1)	GAS VALVE
WALL-MOUNTED ON/OFF SWITCH (OPTIONAL)
THERMOSTAT (OPTIONAL)
Figure 36

120 VAC	INTERMITTENT ELECTRONIC WIRING DIAGRAM	SPARK TO PILOT IGNITOR
BK W GR
	GR
	W
	BK
	IGNITOR MODULE
JUNCTION BOX	3V
		BLACK (IGNITOR)
TRANSFORMER 3V		BLACK (SENSOR)
	BLACK
TO WALL
SWITCH OR	ORANGE (THTP)
THERMOSTAT
	BATTERY BACK-UP		IN
	BLACK (TP)
		LO	HI	PILOT
	RED		OUT	IN
	GREEN (TH)
			VENT
	BROWN
	BROWN
Figure 37

NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.